Fire-protector for telephone-cables.



Patented Dec. l7, 19m.

F. n; SAYLOB. I FIRE. PROTECTOR FORTELEPRONE GABLES.

(Applicltion mod m 1a, 1901.)

(lo Model.)

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mus PETERS no. Puo'ruLwHcL. WASHINGTON u c UNITED STATES ATENT OFFICE.

FRANK D. SAYLOR, on ST. LOUIS, MISSOURI.

'HRE PFioTEcToR FOR TELEPHONE-CABLES.

SPECIFICATION forming part of Letters Patent No. 688,970, dated December17, 1901.

Application filed May 13. 1901.

To all whom it may concern.-

Be it known that I, FRANK D. SAYLOR, a citizen of the United States,residing in the city of St. Louis, in the State of Missouri, haveinvented certain new and usefulImprovements inFire-Protectors forTelephone-Cables; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

It is a well-known fact that when a conflagration occurs in a buildingor block situated in proximity to a telephone-cable the heat or flamesinjure or destroy the cable inclosing wires, thereby breaking telephonicconnection.

The object of my deviceis to overcome these frequent impairments oftelephone service and loss by means of a device consisting of connectedsections of tubular form that may be telescoped one Within another,readily carried by fireman or others from one locality to another,sprung over the telephone-cable at a pole at the point of danger, andits sections quickly drawn out over a part or all the length of cable tothe next pole.

In the drawings, Figure l is a general view of my device, broken away atthe middle, stretched between two poles. Fig. 2 is a 1ongitudinalsection, and Fig. 3 a cross-section.

Similar letters refer to si milar parts throughout the several views.

As shown in the drawings, A A represent the several sections adapted toincase a cable B, suspended from wire B by means of hanger b. Y

0 represents the body of each section of my device and consists of asingle strip of spring metal, preferably steel gauze, bent in the formof a tube, its edges contacting or preferably overlapping, as-shown inFig. 3. Asbestos being fireproof, I make a covering D and lin ing E ofsaid material for said steel springgauze, thus rendering the cabledoubly secure from injury by heat or flames. On the outside of eachsection excepting the largest or outside section, near its inner end,there is a guide H set crosswise, having its ends fastened to the gauzeby means of rivets or other suitable means. In each section exceptingthe smallest or inside section there is a rod Serial No. 60,042. (Nomodel.)

I,'upon which a guide travels. The ends I I of each rod are turnedupward at right angles and fastened rigidly to the inside of theirsections of the protector, the rod thus serving as a support and slidefor the protectorguide, and its turned ends, in connection with theguide, also serving as stops to prevent the sections being drawn out ofeach other.

To enable the fireman or other person to manipulate the device after it,with its several sections telescoped together, has been sprung over thecable, suspending-wire, and hanger, I extend an asbestos-covered rope Kthrough the device, fastening the same by bolts L L or other meansnear-the back and front ends of the smallest or inside extension orsection. The ends of this rope hang out, one end serving as a means todraw out the sections after the device has been sprung over acable, theother end serving for telescoping the device when it is desired toremove it from the cable.

What I claim, and desire to secure by Let ters Patent, is-

1. In a fire-protector for telephone-cables a tubular sheet ofspring-gauze provided with an asbestos covering and lining and adaptedto be sprung open to encircle a telephone-cable, substantially asdescribed and for the purpose specified.

2. In a fire-protector for telephone-cables aspring-metal asbestoscovered and lined tubular case constructed in telescopable sections, therods adapted to carry the guides therein and the asbestos-covered ropefor manipulating the same, substantially as described.

3. In a fire-protector for telephone-cables,

in a combination, the spring-metal tubular L.'W. BARKER, J. H. DUNHAM.

